Recent posts tagged fable

Level UI • 20 hours • in Articles • 9 min read
Somewhere in the last year, "do we need an MCP server?" joined the list of questions that arrive in a brief before anyone has said what the thing is for. It is usually framed as MCP vs API, as though the Model Context Protocol were a newer kind of AP...
post-cover-33074
  • ai
  • api
  • webdev
  • security
galian • Sep 2 • in Articles • 1 min read
There is a 400 error in Claude Fable 5.1 that you will probably not see in development, will not see in staging, and will see in production — from users whose API accounts are newer than yours. messages.5.content.0: Invalid signature in thinking blo...
  • ai
  • claude
  • fable
  • dev
galian • Jul 5 • in Articles • 7 min read
Anthropic's most powerful model ships in two versions, and you can almost certainly use only one of them. Claude Fable 5 is the generally available flagship — the first model of the Claude 5 family, a tier above the entire Opus line. Claude Mythos 5 ...
post-cover-21970
  • ai
  • claude
  • fable
  • mythos
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